package main

import "fmt"

func main()  {
	var age int
	age=30
	fmt.Println(age)

	//age="么么达" 错误的类型
	age,num:=1,2
	fmt.Println(age,num)

	age2,num2:=3,4
	fmt.Println(age2,num2)

	var num3 int //0
	var s1 string //"“
	var num4 float64 //0
	var num5 bool //false

	fmt.Println(num3,s1,num4,num5)

	_,b:=10,20
	fmt.Println(b)

}
